Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 3 (March 2013)


organic compounds



tk5200 scheme

Acta Cryst. (2013). E69, o431    [ doi:10.1107/S1600536813004790 ]

1-Allyl-5-nitro-1H-benzimidazol-2(3H)-one

Y. Ouzidan, Y. Kandri Rodi, A. Kandri Rodi, E. M. Essassi, M. Saadi and L. El Ammari

Abstract: The benzimidazolone residue in the title molecule, C10H9N3O3, is almost planar, with the largest deviation from the mean plane being 0.016 (2) Å for the C atom linked to the nitro group. This plane is nearly perpendicular to the 1-allyl chain as indicated by the C-N-C-C torsion angle of 90.9 (3)°. The fused-ring system makes a dihedral angle of 5.6 (3)° with the nitro group, leading to a synperiplanar conformation. In the crystal, zigzag supramolecular chains are formed along the a axis by N-H...O hydrogen bonds.


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